The mathematical model for decay curve of the nuclei-delayed neutron precursors in experiment at a pulsed electron linear accelerator
On the basis of the notion about six groups of nuclei as delayed neutron precursors, radioactive decay laws and the pulsed mode of accelerator operation, a relationship has been derived to describe the decay curve of nuclei-delayed neutron precursors as a function of the pulse rate of the accelera...
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| Date: | 2009 |
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| Main Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2009
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| Series: | Вопросы атомной науки и техники |
| Subjects: | |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | The mathematical model for decay curve of the nuclei-delayed neutron precursors in experiment at a pulsed electron linear accelerator / A.Yu. Buki, S.P. Gokov, O.A. Demeshko, V.I. Kasilov, K.S. Kokhnyuk, S.S. Kochetov, I.V. Mel’nitsky, I.L. Semisalov, A.A. Khomich, O.A. Shopen // Вопросы атомной науки и техники. — 2009. — № 5. — С. 95-100. — Бібліогр.: 9 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | On the basis of the notion about six groups of nuclei as delayed neutron precursors, radioactive decay laws and the
pulsed mode of accelerator operation, a relationship has been derived to describe the decay curve of nuclei-delayed
neutron precursors as a function of the pulse rate of the accelerator, the exposure time, the observation time, the time
measurement interval and the number of measurement runs. A pilot experiment on thermal-neutron fission of 235U
has been conducted. The aim of the experiment was to check the hardware and the information readout computer
program. Based on the expressions derived, an analysis was performed and relative yields of delayed neutrons were
determined. The present results are compared to the data obtained by other authors. For further development of the
analysis, a question is brought up about the influence of additional conditions on the determination of relative delayedneutron
yields. These additional conditions can be represented by certain expressions laid down when measuring
delayed neutron yields directly between the accelerator pulses. |
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